D-Biotin

CAS number:58-85-5

Molecular formula:C10H16N2O3S

molecular weight:244.31

Chemical structure:

Product name:     Biotin pure grade

Shelf life: 

Two years
Inspection Standard:  USP 36
Items Specifications Results
Description a White or off- white crystalline powder Conform
IR Match with the Reference IR Spectrum Conform
Retention time Should be similar to that of the reference solution Conform
Specific Rotation +89°~+93° +89.95°
Assay 97.5%~100.5% 98.29%
Melting Point 229℃~232℃, in-house 230.5~231.5℃
Individual impurity ≤1.0% 0.64%
Total impurities ≤2.0% 1.8%
Loss on Drying ≤0.1%, in-house 0.07%
Sulfated ash ≤0.1%, in-house 0.04%
Heavy Metal ≤0.001%, in-house <0.001%
Arsenic ≤0.0003%, in-house <0.0001%
Conclusion : Conform to USP 36.